Chicory and blue cheese quiche

Ingredients

• 1 large sheet of puff pastry, or use smaller ones and stick them together using some water or egg wash
• 4 chicory
• knob of butter
• 100 ml orange juice
• 3 tablespoons sugar
• 200 gram bacon lardons
• 1 onions
• 3 eggs
• 300 ml heavy cream
• 100 gram blue cheese (we've used roquefort, but you can also use e.g. gorgonzola)
• handful of grated cheese
• pepper and salt to taste